MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
DNA barcoding a highly diverse group of parasitoid wasps (Braconidae: Doryctinae) from a Mexican nature reserve
ALEJANDRO ZALDIVAR-RIVERÓN; JUAN JOSÉ MARTÍNEZ; FADIA SARA CECCARELLI; VLADIMIR SALVADOR DE JESÚS BONILLA; ANA CECILIA RODRÍGUEZ PÉREZ; ANDRÉS RESÉNDIZ FLORES; M. ALEX SMITH
Año: 2010 vol. 21 p. 18 - 18
Background and aims. The preliminary results of a DNA barcoding study of the doryctine fauna of parasitoid wasps from the ChamelaCuixmala Biosphere Reserve in Mexico, a region dominated by tropical dry forest, are presented. So far, three field trips have been carried out to the reserve and 468 specimens have been collected, of which 407 cox1 sequences were obtained. Materials and methods. The general mixed Yule-coalescent model was applied to a phylogram to investigate the number of evolutionary units that can be detected from the DNA sequence data examined. Results. A total of 185 barcoding species assigned to 20 identified doryctine genera were discriminated using the above model, 115 of which belong to the speciose genus Heterospilus, pointing out the extraordinary species richness of this subfamilyof insects in a Mexican tropical dry forest. Conclusion. On the basis of the DNA barcodes generated, Ptesimogastroides Braet & van Achterberg is proposed to be a juniorsynonym of Ptesimogaster Marsh syn. nov. Neoheterospilus was also found deeply nested within a large Heterospilus clade, suggesting the paraphyly of the latter genus.